Table 2: Comparison of simulation and measurement results of the proposed symmetric TBBSF.

ParameterSimulationMeasurement

Resonant frequency (GHz)2.59, 6.80, 10.622.59, 6.88, 10.67
Insertion loss S11 (dB)−0.08, −0.10, −0.16−0.40, −0.90, −1.10
Return loss S21 (dB)−39.16, −37.79, −35.33−29.90, −28.29, −26.66
FBW at −3 dB (%)42.47, 17.20, 6.7746.28, 16.22, 8.05
Loaded quality factor ( )2.36, 5.91, 15.142.31, 5.21, 11.48
External quality factor ( )5.91, 32.89, 160.606.02, 36.20, 122.64